Railroad frog



H. E. MUcHNlC RAILROAD FROG Feb. 17, 1931.

Feb. 17, 1931. H. E. MUCHNIC RAILROAD FROG Filed April 20/1929 3Sheets-Sheet 3 1 Ptintedreb' 1. jt

UNr -rs sT r IfP TT N-T HENRY a; Moonrise, ornrorrrs'onfmnsas v RAILROADrnoe f p r Appli c ation filerl April 20, 1929."Seria1 N 355,739. r M iv nti lat tots improved rail- Figurejiis a cross.sectional'view-takensub-- road frog, having for its ob ect a construction stantially on theline 7+7 of-Figure'l. "providing a supporting shelf at each end Figure81s a plan view of a'portion of a V thereor" adapted to carry, andsupportthe ends cross-over .frog with my inventionfapplled of therunning railsof the track thereby prothereto. r Y

'. ducing a better joint than heretofore ob- Figure 9 is across-sectional view taken on tained where the oint was made only by theline 9'9 of Figure 8. v :means of bolted angle bars. Figure 1() 1s aplan view of one end of a self- I A further object of my invention is toguarded frogprovided with my invention. provide a preferably one piecefrog which Figure 11 is a cross-sectional view taken on so not onlyinvolves the provision of asupportthe line 11'11 of Figure 10. V V ingshelf at each end of the frog whereby to The invention,- in its specificembodiment as support theends of the adjacent or abutting exemplified inthe drawing, comprises the rails, but also to provide a frog with inbaseportion 10havingasubstantially flat I 15 tegral base pads orlaterally disposed lobes underraceto adapt it to rest on the ties. Por-.35

,wherebya plurality of tieattaching portions tions of these are shown at11 in Figure 1.

throughout the length of the frog are pro- The base 10, atsuitable'spaced apart points vided, thereby obviating the use of theusual throughout the length of the'frog, namelyat rivetedtie plates.- rv portions adaptedtorest on the ties, is pro- 7 2 A further object of myinvention is to provided on opposite sides with integralbase 7o videa-frog having integral gusset braces on pads or lobes 12, 12, thebase-padsorlobes the sidesand which is tied or secured together 12 beingpreferably of dimensions 'suiiicientadjacent the bottom so. as toreenforce the to permit the provision of a plurality of bolt bottom ofthe frog. receiving apertures therein for the purpose of I i 25. As aresult, a superior rail attachment is receiving-the tie attachingelements or spikes 75 provided having a greater security than with shownat 11am Figure 1, whereby the frog 7 frogs as heretofore constructed;a-better frog may be securely. fastened to the respective being obtainedrequiring less maintenance ties on which it rests. I

and involving less labor and cost. The toe end of the frog, shown atthe'left The above enumerated objects and adin Figure 1, is providedwith'an extension or 80 vantages, as well as other advantagesinherupporting sheli which is shown in the see ent in the construction,will be readily comtional View Figure 4. This shelf has a base,prehended from the detailed description of 10 extending longitudinallybeyond the pads the drawings, wherein or lobes 12- 12 as shown atl l inFigure 1 ;1the

V Figurev lis aplan view ofmy improved supporting shelf being intendedto extend be- 85 frog showing portions of the abutting ends of yond thetie ll to which the toe end of the the running rails secured thereto. ffrog is secured a distance sufiicient to overlap FigureQ-isalongitudinal sectional view. the adjacent tie inorder to provide a suit-Figure 3 is an enlarged longitudinal secab e s ppor or th endsi he ru grails 40 tional view-taken substantially on the line indicfltediat 1Thiltis to 3 3 mp 90 7 33 of Figure 1 looln'ng. in the direction of frogprovides proper support for the ends the arrows; 7 of the railswhichcontact with the frog at a Figureeis across sectional'view'takensub P in m ifi f the A ja t i and 'stantially on the line 41 of Figure1, lookeyond the normal toe portion of the frog, as ing in the directionof the arrows. clearly shown in Figure 1. With this con- 95 Figure 5 isa cross sectional view taken on struction a greatly improved joint isprothe line 55 of Figure 1 as indicated by the vided, as the integralshelf reenforces the i v arrows. angle-barjoint between the frog and therun-' Figure 6 is a cross sectional view taken subning rails; jOiIl W ih r o c y f stantially on the line 6-6-of Figure 1. be made by the useof boltedangle bars. i

t The shelf at the toe end of the frog, namely the end at the leftinFigure l and shown in the sectional view Figure 4c, is provided with anupstanding wall or rib 16, see Figure 4, which terminates at top in atransversely disposed spacer and rall-engaging'portion or head v17 ofmorew or less {thickness and of length commensuratewiththe-spaci'ngintermediate of the converging rail ends 15, 15 in orderthat the opposite ends ofthe spacer or head portion 17 may abut againstthe webs of the rails. These opposite ends of the head portion 17 areenlarged vertically and have outer arcuate surfaces at-toprand bottom asshown at 18, .18 in order to more or less conform with the contoun ofthe rails at the juncture of the web portions with'the rail heads and ofthe webs with the'base ofthe rails, as

shown in Figure-4c. This transversely disposed head or spacer portion 17isprovided with a longitudinal opening therethrough adapted to receive abolt 19 which is also disposed through registering apertures in thewebs-of the two rail ends, the bolt'19 consti-' tuting means for alsosecuring the usual fishplates on angle bars 20, 20 whereby the ends ofthe rails are properly attached to the end a of the frog, the angle barscausing the rail ends to befirmly clamped against the opposite ends ofthe head or spacerportion 17 as shown in Figure 4. v i The shelf at thetoe end of the frog, as shown in Figure 1,is preferably provided 2 witha series of transversely disposed spacer =port-1ons, as shown 1n dottedlines at 17 17 with the distance between the running rails;

. the respective spacer portions are shown cially at the intermediatespreading portions spaced apart lengthwise of thefrog and all apertured'to receive similar bolts 19 which also extend through the'fishplates orangle Jbars20, 20 and the rails on each side of the frog;

In so far as therail-engaging portions of the frog proper.are'concerned, my frog is of accepted standard construction andconfiguration, so that specific description ofsuch 5 portions of thefrog need not be entered into.

The attaching base-pads or lobes 12,espeofthe frog, arepreferablyprovided with the verticallydisposed gussets or tapering ribs .21,see'Eigures 1' and 5.

The frog at its intermediatepoint portion indicated; at A and extendinglengthwise toward the, heel end of the-frog is formed as shown inFigure5, where the. base 10, adjacent to opposite sides, is provided with thelaterally spaced apart upstanding walls 22, 22, which terminate at thetop in the wheel engaging tread portions 23,28. The upper ends of thewalls 22, 22 are in turn preferably formed integral with the bridgeportion formed-on its upper surface with the longitudinallyextendinggrooves orchannels 25, 25, arranged on opposite sides of the interme:diate longitudinal rib 26 to provide 'wheel- 7 flange receivingchannels.

The outer sides of the verticalwalls 22, 22 are, in turn, preferablyreenforced by the tapering ribs 21;,

The heel end of the frog, namely the right hand endvof the frog,,asviewedin' Figure 1,

like the toe end thereof, is also provided with a supporting shelf orpad as shown at 26 for the purpose of properly supporting the adjacentends of the running rails 15,' 15. V

The general construction of this shelf or pad at the heel end of thefrog is more clearly shown in Figure 6, where the base 10 has theattaching flanges or lobes 12 adapted to extend beyond the base of therails as well as beyond the foot portions of the fish-plates or gle bars20 whereby the ends of the rails V are properly secured andclamped tothe frog.

The supporting shelf 26 at the heel portion has the base 10, at apoint'intermediate= of the opposite sides, provided with anupstandingweb or wall 27 having transversely disposed webs 28, 28 onopposite sides formed integral therewith and with the depending rail enaging sides or aprons 29, 29 which in turnare formed integral with thetrans- 'versely disposed top'or head portion 30.

As shown in Figure 6, the depending 'por tions or aprons 29, 29 areoffset outwardly from the sides of-the'head portion '30 so as to providethe shoulders ,31, which extend beneath the balls or heads of therunning rails 15, 15; while the depending portions 29, 29

extend fiush=with the webs of the rails and terminate, preferably,immediately above-- the rail-base.

It is apparent that a firm rail supporting structure is thus provided.

' This rail'spa'cing and supporting portion of the frog tapers graduallyinwardly,- nam m. ly toward the opposite end of the frog and is providedwith one o'rmore transverse holes therethrough to receive the bolts 19,which' also eXtend through registering apertures in the running railsand angle bars 20.

At a point removed from the extension or supporting shelf of thefrogy-the latter is provided" with one or more transversely disposedreenforcing partitions as shown at :32

standing sides and with the'head portion 33 which overlaps the sidewallsas shown. In

the exemplification of the invention as shown in vliigure 1, I disclosethe frog at the heel provided with two transverse partitions 32,

in Figure"? formed'integrallwith the up-:

7 which are both apertured' to receive the bolts" 19 whereby the innerends of "the fish-plates or angle bars 20 are clamped in place againstthe sides and beneath the head portion 33, as

clearly shown in Figure 7, thereby firmly V holding the ad acent ends ofthe running rails in'place In gures 8 and 9, 1 illustrate theapplication of my invention to a cross-over frog.

As the application of my invention is similar at each end of the frog,the showingof one corner or end of the frog is deemed sufficient.

That is tosay, the ends which receive the running rails 15, wherethegreatest strains are encountered, are each provided with a railsupporting shelf 33 formed integral with the upstanding railengaging'element 3 1 disposed along the inner face or side of the rails15.

The rail engaging portion 34: is formed to engage beneath the head ofthe running rail and is undercut to receive the flange or base of therail,' as shown at 35 in Figure 9; while the top of the portion at isgrooved at 36 toreceive the flange of the wheel; The portions 34, ateach end of the frog, like the rail 15', are aperturedtransversely toreceive bolts 37 wh'ereby the angle-bars or fish-plates 38,

i with the rails, are 'i'irmly bolted and clamped in place. Thefish-plates 38 are located to the outside of the rails and are thereforebent to lit into the outsideangle of the crossTo-ver frog as shown inFigure 8, thus serving to clamp the ends of two approach rails to thefrog. 7

V The rail supporting shelf or'base 33'on iop- V posite sides and thefrog at various'tie ena gaging points throughout, is shown provided withthe integral base-pads'39, disposed laterally beyond the'sides, thebase-pads 39 being apertured at 40 to receive suitable spikes forfastening the frog to the ties.

In Figures 10 and 11 I illustrate the application of my invention towhat is known as a self guarded frog,- used more particularly in switchyards the guard being employed especially at the toe end of the frog asshown I sity of employing the-riveted tie are usually employedplateswhich The greatest strains or load encountered are at thepointwhere the wheels hit the point of the frog and for that reason myimproved frogs are reenforced or tied" together at the bottomintermediate of its ends, thus providl1;

ing a more secure structure' 'ai frog havingsuperior railjattachmentthanhas heretofore been the case, and thereforea frog involving lessmaintenance expense.

A single piece railroad. frog adapted to receive; the wheels beyond theends of the rails and provided with an integral rail supporting shelf atboth ends thereof, an integral base with'integral upstanding portionsadapted to engage with oneside ofeach. rail, said portions adjacenttothe base being adapted to I receive theirail-base while the parts thereabove are formedto engage'the rail-webs and ofl-set atthe top to receiveone side of the rail heads, said portions intermediate" of the top v inFigure 10 where the rails15 are arranged on the inside of the guardportions 11, 41, formed integralwith the extended base or railsupporting shelf 42, the rails being suitably bolted in place as moreclearly shown in the cross-sectional view Figure 11. This frog likethose previously described, is also provided at suitable tie engagingpoints with the laterally disposed base-pads 43, apertured to receivesuitable fastening means or spikes.

' The frogs at points coincident with the pads are provided withthe'supporting shelves formed integralwith the frogs and with the pads,as shown in "dotted lines in Figures 1, 8 and 10, thereby providing apluralityof tie attaching portions throughout the lengths of the frogs,which therefore obviate the neces-

